If I record a sound at a rate of 8,000 samples per second, I know that the highest frequency that can be reproduced from the sound is 4000Hz. What I want to know is:
If the sound contains frequencies ...

I was wondering how accurate frequencies do PC speakers produce. I'm talking about the old small things in computer that usually beep.
I used the beep linux command to generate some frequencies. But ...

Some time ago, I did a project where the solo guitarist was sitting in a different location. I uploaded rough down mixes to guitarist, who would load the files into his DAW software, record his guitar ...

Given that most people can't hear so many frequencies above 20kHz anyways, I've never understood the exact arguments for using sampling rates above 48kHz. At 48kHz, I understand that it is easier to ...